Cholecalciferol, serum calcium and left ventricular hypertrophy in essential hypertension.

Objective: To assess the correlation of vitamin cholecalciferol and serum calcium with left ventricular hypertrophy (LVH) in essential hypertension patients presenting at a tertiary care hospital. Study Design: Cross Sectional Comparative study. Setting: Department of Cardiology and Medicine, Liaquat University of Medical and Health Sciences, Jamshoro, Sindh. Period: July 2019 to January 2021. Material & Methods: 100 diagnosed LVH+ Essential Hypertenison cases and 100 diagnosed essential hypertension (controls) were selected through non- probability purposive sampling. Echocardiography, serum cholecalciferol, calcium, phosphate, parathyroid hormone (PTH), alkaline phosphatase (ALP), urea and creatinine were measured form sera. Devereux’s formula measured the LV thickness LVH. SPSS ver. 21.0 analyzed the descriptive statistics and compared the variables at 95% Confidence interval (P≤0.05). Results: Serum calcium, phosphate and parathyroid hormone were found elevated in LVH cases compared to control (P=0.0001). Cholecalciferol in LVH cases was low noted as 27.3±7.84 ng/dl compared to 39.5±0.43 ng/dl in controls (P=0.0001). Cholecalciferol in mild, moderate and severe LVH cases was descending order as 30.67±7.84, 24.76±7.72 and 14.96±6.12 mm respectively (P-0.0001). Serum cholecalciferol proves inverse association (r= -0.180) with LVH (p=0.003). Conclusion: The present study reports vitamin cholecalciferol deficiency increases the chances of left ventricular hypertrophy through increased secretion of parathyroid hormone that induces de – novo protein synthesis of ventricular myocardium.